高雄
Gitee
parent
f2cfb4cf4a
commit
33277bc457
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@ -1,16 +1,17 @@
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package cn.keking.utils;
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import com.lowagie.text.Document;
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import com.lowagie.text.Image;
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import com.lowagie.text.Rectangle;
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import com.lowagie.text.pdf.PdfWriter;
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import com.lowagie.text.pdf.RandomAccessFileOrArray;
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import com.lowagie.text.pdf.codec.TiffImage;
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import cn.keking.config.ConfigConstants;
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import com.sun.media.jai.codec.*;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.itextpdf.text.Document;
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import com.itextpdf.text.Image;
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import com.itextpdf.text.io.FileChannelRandomAccessSource;
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import com.itextpdf.text.pdf.PdfWriter;
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import com.itextpdf.text.pdf.RandomAccessFileOrArray;
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import com.itextpdf.text.pdf.codec.TiffImage;
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import javax.media.jai.JAI;
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import javax.media.jai.RenderedOp;
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import java.awt.image.RenderedImage;
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@ -18,13 +19,14 @@ import java.awt.image.renderable.ParameterBlock;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.RandomAccessFile;
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import java.util.ArrayList;
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import java.util.List;
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public class ConvertPicUtil {
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private final static Logger logger = LoggerFactory.getLogger(ConvertPicUtil.class);
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private final static String fileDir = ConfigConstants.getFileDir();
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/**
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* Tif 转 JPG。
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*
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@ -42,25 +44,21 @@ public class ConvertPicUtil {
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logger.info("找不到文件【" + strInputFile + "】");
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return null;
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}
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strInputFile = strInputFile.replaceAll("\\\\", "/");
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strOutputFile = strOutputFile.replaceAll("\\\\", "/");
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FileSeekableStream fileSeekStream = null;
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try {
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JPEGEncodeParam jpegEncodeParam = new JPEGEncodeParam();
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TIFFEncodeParam tiffEncodeParam = new TIFFEncodeParam();
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tiffEncodeParam.setCompression(TIFFEncodeParam.COMPRESSION_GROUP4);
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tiffEncodeParam.setLittleEndian(false);
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String strFilePrefix = strInputFile.substring(strInputFile.lastIndexOf("/") + 1, strInputFile.lastIndexOf("."));
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String jpgname = strInputFile.replace(fileDir.replace("\\","/"), "");
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int index = jpgname.lastIndexOf(".");
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String strFilePrefix = jpgname.substring(0, index);
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fileSeekStream = new FileSeekableStream(strInputFile);
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ImageDecoder imageDecoder = ImageCodec.createImageDecoder("TIFF", fileSeekStream, null);
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int intTifCount = imageDecoder.getNumPages();
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logger.info("该tif文件共有【" + intTifCount + "】页");
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String strJpgPath;
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String strJpgUrl;
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if (intTifCount == 1) {
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@ -87,9 +85,7 @@ public class ConvertPicUtil {
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strJpg = strJpgPath + "/" + i + ".jpg";
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strJpgUrl = strFilePrefix + "/" + i + ".jpg";
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}
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File fileJpg = new File(strJpg);
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// 如果文件不存在，则生成
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if (!fileJpg.exists()) {
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RenderedImage renderedImage = imageDecoder.decodeAsRenderedImage(i);
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@ -98,13 +94,11 @@ public class ConvertPicUtil {
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pb.add(fileJpg.toString());
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pb.add("JPEG");
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pb.add(jpegEncodeParam);
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RenderedOp renderedOp = JAI.create("filestore", pb);
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renderedOp.dispose();
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logger.info("每页分别保存至： " + fileJpg.getCanonicalPath());
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} else {
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logger.info("JPG文件已存在： " + fileJpg.getCanonicalPath());
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// logger.info("JPG文件已存在： " + fileJpg.getCanonicalPath());
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}
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listImageFiles.add(strJpgUrl);
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@ -131,101 +125,45 @@ public class ConvertPicUtil {
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* @param strJpgFile 输入的jpg的路径和文件名
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* @param strPdfFile 输出的pdf的路径和文件名
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*/
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public static void convertJpg2Pdf(String strJpgFile, String strPdfFile) {
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Document document = new Document();
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// 设置文档页边距
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document.setMargins(0, 0, 0, 0);
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FileOutputStream fos = null;
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private static final int FIT_WIDTH = 500;
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private static final int FIT_HEIGHT = 900;
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public static boolean convertJpg2Pdf(String strJpgFile, String strPdfFile) {
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Document document= null;
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RandomAccessFileOrArray rafa = null;
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try {
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fos = new FileOutputStream(strPdfFile);
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PdfWriter.getInstance(document, fos);
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// 打开文档
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document = new Document();
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PdfWriter.getInstance(document, new FileOutputStream(strPdfFile));
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document.open();
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// 获取图片的宽高
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Image image = Image.getInstance(strJpgFile);
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float floatImageHeight = image.getScaledHeight();
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float floatImageWidth = image.getScaledWidth();
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// 设置页面宽高与图片一致
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Rectangle rectangle = new Rectangle(floatImageWidth, floatImageHeight);
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document.setPageSize(rectangle);
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// 图片居中
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image.setAlignment(Image.ALIGN_CENTER);
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//新建一页添加图片
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document.newPage();
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document.add(image);
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} catch (Exception ioe) {
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ioe.printStackTrace();
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} finally {
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//关闭文档
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rafa = new RandomAccessFileOrArray(new FileChannelRandomAccessSource(new RandomAccessFile(strJpgFile, "r").getChannel()));
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int pages = TiffImage.getNumberOfPages(rafa);
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Image image;
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for (int i = 1; i <= pages; i++) {
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try {
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image = TiffImage.getTiffImage(rafa, i);
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image.scaleToFit(FIT_WIDTH, FIT_HEIGHT);
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document.add(image);
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} catch (Exception e) {
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document.close();
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rafa.close();
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e.printStackTrace();
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}
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}
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document.close();
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rafa.close();
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return true;
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}
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catch (Exception e)
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{
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System.out.println("错误:"+ e.getMessage());
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}
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finally {
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document.close();
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try {
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assert fos != null;
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fos.flush();
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fos.close();
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rafa.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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return false;
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}
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/**
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* 将Tif图片转换为Pdf文件（支持多页Tif）
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*
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* @param strTifFile 输入的tif的路径和文件名
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* @param strPdfFile 输出的pdf的路径和文件名
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* @return File
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*/
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public static File convertTif2Pdf(String strTifFile, String strPdfFile) {
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try {
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RandomAccessFileOrArray rafa = new RandomAccessFileOrArray(strTifFile);
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Document document = new Document();
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// 设置文档页边距
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document.setMargins(0, 0, 0, 0);
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PdfWriter.getInstance(document, new FileOutputStream(strPdfFile));
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document.open();
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int intPages = TiffImage.getNumberOfPages(rafa);
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Image image;
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File filePDF;
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if (intPages == 1) {
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String strJpg = strTifFile.substring(0, strTifFile.lastIndexOf(".")) + ".jpg";
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File fileJpg = new File(strJpg);
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List<String> listPic2Jpg = convertTif2Jpg(strTifFile, strJpg);
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if (listPic2Jpg != null && fileJpg.exists()) {
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convertJpg2Pdf(strJpg, strPdfFile);
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}
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} else {
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for (int i = 1; i <= intPages; i++) {
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image = TiffImage.getTiffImage(rafa, i);
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// 设置页面宽高与图片一致
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Rectangle pageSize = new Rectangle(image.getScaledWidth(), image.getScaledHeight());
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document.setPageSize(pageSize);
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// 图片居中
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image.setAlignment(Image.ALIGN_CENTER);
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//新建一页添加图片
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document.newPage();
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document.add(image);
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}
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document.close();
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}
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rafa.close();
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filePDF = new File(strPdfFile);
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return filePDF;
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} catch (Exception e) {
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logger.error(e.getMessage(), e);
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}
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return null;
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}
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}
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